'''Walkman''' is a Sony
brand tradename originally used for portable audio Compact Cassette|cassette
/tape players in the late 1970s. In the 2010s, it was used to market Sony's portable Audio frequency|audio
players as well as a line of former Sony Mobile Communications|Sony Ericsson mobile phone
s. The original Walkman actually introduced a change in music
listening habits by allowing people to carry recorded music with them and listen to music through lightweight headphones
. Owners of the Walkman were able to take back their "lost" time, commuting for example, and turn it into a pleasurable experience, or add a soundtrack to their urban surroundings.
It was the privatization and personalization offered by the Walkman that led to its success.
The prototype was built in 1978 by audio-division engineer...